Role of viscosity in conversion of lead slag wastes into commercial products

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:197295

Reddy, R G ^[1]

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1. Univ. of Nevada, Reno, NV (United States). Dept. of Chemical and Metallurgical Engineering

In the past, many lead-containing slags and wastes were stored in piles or landfills. However, shortages of landfill space as well as increased public concern about the toxic nature of disposing lead containing industrial wastes in landfills have led to review of disposal methods. Several lead wastes are processed to provide commercial products. They are used on-site in land reclamation projects, or are processed and sold as a by-product. These by-products contain nutrient elements needed for plants or animals and also may contain heavy metal contaminants such as As, Cr, Cu, Zn and Pb. Use of such by-products containing unacceptable levels of these contaminants could cause plant and animal toxicity. In this paper, the role of viscosity in conversion of lead slag wastes into commercial products containing low content of lead and other heavy metals is presented. Effects of slag viscosity on the velocity of movement of metal and matte prills through the molten slag layer in the melting furnace is discussed. Current and emerging slag cleaning technology, foamed, granulated and pelletized slag technologies are reviewed.

• OSTI ID: 197295
• Report Number(s): CONF-951105--; ISBN 0-87339-318-X
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMMERCIALIZATION
INDUSTRIAL WASTES
LEAD
RECYCLING
SLAGS
VISCOSITY
WASTE PROCESSING
WASTE PRODUCT UTILIZATION